Jeffrey David Boam was an American screenwriter and film producer. He is known for writing the screenplays for The Dead Zone (1979), Innerspace (1987), The Lost Boys (1987), Indiana Jones and the Last Crusade (1989), Lethal Weapon 2 (1989), Lethal Weapon 3 (1992) and The Phantom (1996). Boam`s films had a cumulative gross of over US$1 billion. Boam died of heart failure on January 24, 2000 at age 53.